He produced an important work on the anatomy of turtles, Anatome Testudinis Europaeae.[5] He was the author of several scientific discoveries, including a glandular organ in bivalvular molluscs that is now known as the organ of Bojanus.[6] Also, he provided anatomical distinctions for the aurochs (Bos primigenius) and the Steppe wisent (Bison priscus), being the binomal author of both species.[7]